The present invention relates to an etching-solution composition, and the etching-solution composition according to one embodiment of the present invention comprises 3-20 weight% hydrofluoric acid, 5-40 weight% nitric acid, 10-60 weight% acetic acid, and 2-20 weight% a catalyst, with the remainder being water. The catalyst can comprise a mixture of at least one selected from an ammonium compound and a sulfonic acid compound.

PURPOSE: A manufacturing method of a natural dye solution is provided to provide a natural dye solution capable of manufacturing various natural dye-sensitive solar batteries for requiring growth of plants. CONSTITUTION: A manufacturing method of a natural dye solution comprises a step of preparing a natural dye powder (400)

PROBLEM TO BE SOLVED: To provide a sealing material for solar battery that suppresses corrosion of metal parts (an electrode, a conductor of a tab string, etc., of a solar cell) due to acetic acid, and is high in transparency of an incidence surface-side sealing material, and a solar battery module that has the metal parts suppressed from corroding due to the acetic acid and has high power generation efficiency.

PROBLEM TO BE SOLVED: To provide a polishing composition capable of suppressing occurrence of a level difference due to etching on the surface of a polishing object, when polishing the polishing object having a part containing a group III-V compound material.

This polishing composition, which is used in applications of polishing a polishing subject having a portion containing a group III-V compound material, contains an oxidizing agent and an anticorrosive agent. The anticorrosive agent preferably is a nitrogen-containing organic compound such as 1H-1,2,4-triazole, benzotriazole, or the like, or an organic compound having a carboxyl group, for example, a dicarboxylic acid such as malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, ...

PURPOSE: A ruthenium-aluminum perovskite-based phosphor for blue light excitation is provided to emit green and yellow light with excellent luminance efficiency. CONSTITUTION: A ruthenium-aluminum perovskite-based phosphor is represented by chemical formula 1: (Lu_(1-a-b)A_aB_b)D_dO_3 where A is one or two more elements selected from Sc, Y, La, and Gd

An optical passivation film includes Tii-xAlxOy:Z, where Z represents a halogen, x is from 0.05 to 0.95, and y is greater than 0. A method for manufacturing the optical passivation film includes preparing a spray solution including an aluminium oxide precursor, a titanium oxide precursor, a halogen solution and a solvent. A substrate is disposed on a heating device to heat the substrate. The spray solution is sprayed on the substrate to form the optical passivation film. A solar cell having the ...